I actually did try that for a while...the only problem was that my orchids are in my bedroom, and the bed is about 2 feet away from the windowsill where the orchids are. I kept splashing stuff all over and generally making a mess, and my poor fiance got really upset and grossed out...he's a little sensitive about stuff like that :-(

So, they all make the trek to the kitchen sink about 2x a week currently...its not so bad; I think I've worked out a system...I do the mini's first, and let them soak, and while they're soaking in bowls, I grab the bigger phals and put them all in the sink for a bath party They seem to like it.